games/dangerdeep: Fix compiling GLSL shaders

compiling failed, log:
0:2(1): preprocessor error: #version must appear on the first line

Reported by:	lme

1 files changed, 26 insertions, 0 deletions

diff --git a/games/dangerdeep/files/patch-src_shader.cpp b/games/dangerdeep/files/patch-src_shader.cpp
new file mode 100644
index 000000000000..77a90990d7a9
--- /dev/null
+++ b/games/dangerdeep/files/patch-src_shader.cpp
@@ -0,0 +1,26 @@
+compiling failed, log:
+0:2(1): preprocessor error: #version must appear on the first line
+
+--- src/shader.cpp.orig	2020-03-29 17:02:18 UTC
++++ src/shader.cpp
+@@ -74,6 +74,8 @@ glsl_shader::glsl_shader(const string& filename, type 
+ 		// the program as string
+ 		string prg;
+ 
++		prg += "#version 110\n";
++
+ 		// add defines to top of list for preprocessor
+ 		for (defines_list::const_iterator it = dl.begin(); it != dl.end(); ++it) {
+ 			prg += string("#define ") + *it + "\n";
+@@ -83,7 +85,10 @@ glsl_shader::glsl_shader(const string& filename, type 
+ 		while (!ifprg.eof()) {
+ 			string s;
+ 			getline(ifprg, s);
+-			prg += s + "\n";
++			string prefix("#version");
++			if (0 != s.compare(0, prefix.size(), prefix)) {
++				prg += s + "\n";
++			}
+ 		}
+ 
+ 		const char* prg_cstr = prg.c_str();